Can you make non-standard corner radius end mills?

Yes. Special diameters, radii, lengths, necks or coatings are made to your drawing or sample from 5 pieces. We confirm the drawing with you before production.

What quality documents can you provide?

Tools are measured on the machine during grinding, and a dimensional inspection report is available with your order. RoHS and REACH documents can be supported on request.

What payment methods do you accept?

L/C, T/T, Western Union, PayPal and MoneyGram. Goods ship from Shanghai port or by express.

4 Flute Nano Coating Helix CNC Solid Carbide Corner Radius End Mill

Name: 4 Flute Nano Coating Helix CNC Solid Carbide Corner Radius End Mill
Brand: CHANGZHOU DELEVEL TOOLS CO., LTD.
SKU: 822867835

Jiangsu, ChinaCHANGZHOU DELEVEL TOOLS CO., LTD.

US$5.44-205.52

5 Pieces

Product profile

Customization

Available

Shank Type

Straight Shank

Flute Number

Model NO.

HRC55/58/60 Corner Radius End Mill

Application

Steel, Alloy Steel, Stainless Steel, Cast Iron

Material

Solid Tungsten Carbide

End Type

Corner Radius (Bull Nose)

Stock Status

Most Standard Sizes in Stock

Flutes

Workpiece Hardness

HRC55 / HRC58 / HRC60 Series

Corner Radius Range

R0.2-R3 mm

Diameter Range

D1-D20 mm

Standard Lengths

50 / 60 / 75 / 100 / 150 mm

Raw Material

100% Original Carbide, No Recycled Material

Made-to-Order Lead Time

About 15 Working Days

Transport Package

1 PC Per Plastic Tube; 5 PCS Per Box

Specification

D1-D20mm, R0.2-R3, 4F

Trademark

DELEVEL

Origin

Changzhou, Jiangsu

HS Code

8207709000

Production Capacity

50000PCS/Month

Key features

Solid Carbide: ground from 100% original tungsten carbide rod, no recycled material.

Corner Radius: a radiused corner resists chipping and leaves a fillet on shoulders and floors.

Hardness Grades: standard series for workpieces up to HRC55, HRC58 and HRC60.

Sizes: 4 flute, D1-D20 mm, corner radius R0.2-R3, lengths 50 to 150 mm.

Coatings: AlTiN, AlCr-based, TiSiN and AlCr-Blue, chosen for the workpiece material.

Measured While Grinding: tools are measured on the machine; shank tolerance h6.

In Stock: most standard sizes are in stock for fast delivery.

Made to Drawing: special sizes from 5 pieces; we confirm the drawing before production.

Company profile

CHANGZHOU DELEVEL TOOLS CO., LTD.

Jiangsu, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableAverage Response Time: ≤2.51hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryCHANGZHOU DELEVEL TOOLS CO., LTD. is a China-based manufacturer/factory specializing in carbide drills, end mills, threading tools, modular tooling, and custom carbide tools. It reports ISO 9001 certification, more than 12 years of carbide-tooling experience, six production lines, six-to-ten R&D engineers, six-to-ten quality-control staff, and annual carbide end-mill output of 600,000 pieces. The supplier supports multiple customization modes, ODM, and OEM services for well-known brands, and reports inventory capability and off-peak lead times within 15 working days. However, written corrective-action and complaint-handling procedures are absent, overseas service infrastructure is limited, and the validity of manufacturing-capacity contracts and quality-assurance status is unknown. Financial-capacity entries are present for 2023–2025, but no sufficient non-monetary evidence establishes financial strength. Customer cases are not specifically documented.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company in China. Its listed products and business scope cover carbide and other metal tooling, consistent with a direct manufacturing supplier.

CertificationsThe supplier reports holding ISO 9001 certification for its management system. This is explicit evidence of a formal quality-management certification, although the slices do not provide certificate validity or scope details.

After-Sales capabilityThe supplier has no written procedures or records for corrective and preventive actions or effective complaint handling. It has inventory capability, but no overseas warehouse, showroom, agents, or branches; therefore, the documented after-sales framework is deficient despite some fulfillment support.

R&D capabilityThe supplier reports new products during the past year, ODM availability, and six-to-ten R&D engineers with total R&D experience stated at six-to-ten years. It lacks an available SDK, but the documented product-development and ODM activity supports innovation capability overall.

Production capacityThe supplier operates six production lines, reports 600,000 carbide end mills produced annually, employs six-to-ten quality-control staff, and states off-peak lead times within 15 working days. Inventory capability and a claimed on-time-delivery record further support production execution, although contract status and quality-assurance status remain unknown.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full and minor customization, flexible customization, ODM services, and custom carbide tools. Its stated specialization in non-standard carbide tools and technical support directly supports strong customization capability.

Product Q&A

Q:Which series should I choose for my workpiece?

Choose by workpiece hardness: the HRC55 series for general steel and alloy steel, the HRC58 and HRC60 series for hardened steel. Tell us the material and hardness and we will recommend a size.

Q:When should I use a corner radius end mill instead of a square end mill?

Use a corner radius end mill when you need a fillet at the floor of a pocket or shoulder, or a stronger corner for roughing and semi-finishing. A square end mill leaves a sharp 90-degree corner.

Q:Which corner radii are standard?

D1 to D20 mm with corner radii from R0.2 to R3. The radii available depend on the diameter and the hardness series; see the size table.

Q:Which coatings are available?

AlTiN, AlCr-based, TiSiN and AlCr-Blue. For aluminium, copper and other non-ferrous materials, please use our uncoated aluminium cutting end mills.

Q:Are standard sizes in stock?

Most standard sizes listed in the size table are in stock. Other sizes are made to order in about 15 working days.